C# Windows Forms - Weird multiline textbox behaviour

Question

I am using a StringReader to read input from a multi-line textbox. However, I am experiencing strange behaviour.
My Code:

string x = reader.ReadLine();
int y = int.Parse(x);

x is always an int.
My problem is that since x is the first line of the multiline textbox, it doesn't contain just the int, but System.Windows.Forms.Textbox, Text:10
Any help here?

I create the StringReader as following:

using (StringReader reader = new StringReader(Convert.ToString(multilinetbox)))
{

}

Answer 1

Change your reader to read the Text property of the multiline textbox, instead of the entire control:

using (StringReader reader = new StringReader(multilinetbox.Text))